Engine mounting



11, 1932. E sfMacPl-IERSON 1,881,777

ENGINE MOUNTING Filed Deo. 2, 1929 2 Sheets-Sheet l 2o @ff/l N www ATTORNEYS` Oct. l1', 1932.

E. Ma@ PHERSON ENGINE MOUNTING 2 Sheets-Sheet 2 Filed Dec. 2. 1929 ATTORNEYS i Patented oci; 11, 1932 UNITED STATES PATENT OFFICE EARLE S. MACPHEBSON, OF DETROIT, MICHIGAN, ASSIGN OR TO HUPP MOTOR CAR GOR- PORATION, OF DETROIT, MICHIGAN, A CORPORATION OF VIRGINIA ENGINE MOUNTING Appncuan mea December 2, 1929. serial No. 411,167.

-' der tension or shear. While this method of mountin the engine has been found satisfactory Ior absorbing vibrations .set up by the engine, nevertheless it 1s obJectionable since it permits weaving of the frame sills relative tothe crossbar and accordingly prohibits utilizing the motor supporting crossbar as a frame brace. As a consequence it is necessary to provide a separate crossbar for bracing the frame which not only increases the cost of production but adds to the weight of the vehicle.

The present invention contemplates elimi' nating the foregoin disadvantages by providing a mounting or the-engine whiclrnot only eectively absorb shocks or vibrations set up by the motor but also. permits the motor attaching arms to function efficiently as a rigid cross-brace for the frame. n

With the `foregoing as well as other obJects in view the invention consists in novel features of construction illustrated and about to be described.

In the drawings: Figure 1 is a fragmentary side elevational view of the chassis having a motor supported thereon in accordance with the teachings of this invention. o

Figure 2 is a sectional end elevation of the power unit mounted on the chass1s.

Figure 3 is a sectional view taken on the plane indicated by the line 3 3 of Figure 2. Figure .4 is a sectional view taken on the plane indicated by the line 4-4 of Figure 2. Figure 5 is a sectional view taken onA the plane indicated by the line 5--5 of Figure 2.

Figure 6 is a sectional view taken on the plane indicated by the line 6-6 of Figure 2.

Figure 7 is a fragmentary'sectional view showing a slightly modified form of construction.

Referring now to the drawings it will be noted that there is illustrated in Figure 1 a chassis frame 10 comprising laterally spaced sill members l1 held in assembled relation to each other by means of suitable cross-members and adapted to support a power unit 12. The latter preferably comprises an internal combustion engine 13 having a clutch hous ing 14 and having laterally extending attaching arms 15 joined together at the inner ends by means of an annular portion 16 formed integral with the arms. The annular portion is secured to the clutch housing in a manner to be presently described and surrounds the transmission 17. The motor arms are adapted to be secured to the sill members and in addition to supporting the power unit upon the frame also serve as a rigid crossbrace for the frame.

In order to permit the motor arms to function as a rigid cross-brace Jfor the frame and at the same time provide means lfor absorbing vibrations set up by the engine prior to reaching the frame, suitable insulating means is interposed between the power unit and motor attaching arms. In detail the clutch housing 14 is secured at circumferentially spaced points to the annular portion 16 of the arms by means of mounting units 18. Each unit comprises a central elongated plate 19 riveted or otherwise suitably secured to the annular portion 16 of the brace and adaptedv to bridge an elongated opening 2O therein. Extending longitudinally of the plate 19 and spaced laterally from opposite sides of this plate are a pair of elongated plates 21 and 22 comparatively shorter than the plate 19 and so arranged that the plate 22 extends within theY elongated opening 2O in the annular portion 16 free from contact therewith. The plates 21 and 22 are. held in proper spaced relation to each other by formed in the plate 19 adJacent the ends thereof. As shown in Figure 4the plates 21 and 22 are provided with comparatively smaller openings 25 arranged in alignment with the openings 24 in the plate 19 and 'of the bolts 26 are adapted to be threaded withinthe clutch housing 14 and serve to rigidly secure the sleeves 23 and lates 2l and 22 to the clutch housing. T e heads of the bolts extend through the opening 20- in the portion16 of the brace so as to be readily accessible.

In order to prevent the central plate 19 from contacting with the plates 21 and 2 2 and with the sleeves 23 I provide a solid insulator block 27 formed of resilient material such as rubber. The resilient material is preferably molded in place and is vulcanized to the plates, 19, 21 and 22. As shown in Figure 4 the insulator block 27 completely fills the space between opposite sides of the central plate 19 and the plates 21 and 22 and also fills the space between the sleeves 23 and the edge portionsof the openings'24 in the plate 19'. Thus it will be observed that while the attaching plate 19 is rigidly secured to the annular portion 16 o the motor arms it is free from metallic contact with the power unit so that any vibrations -set up ytherein are absorbed prior to reaching t e frame. It will further be seen that the resilient material interposed between the motor arms and power unit is under shear and the resiliency of this material is not efclutch housing `tively attaching the power unit to the arms.

In the illustratlve embodiment of theinven tion four motor mountings are utilized for performing the attaching function and these mountin s are identical in construction to the one ereinbefore set forth with the exception of the mounting opposite the starting motor desi ated in igure 2 by the character 29. is mounting is illustrated more clearly in Figure 3 and differs from the one hereinbefore set forth in .that the plate 30 corresponding to the plate 21 in the above described mountingis provided. with an enlarged central opening 31 adapted to receive the projecting end of the starting motor shaft' 32.

Thus from the foregoing it will be apparunit and motor arms in such a manner as to be under shear, thereby rendering it possible to obtain the maximum absorbing qualities from the material.

'While in describing the invention .particular stressvhas been placedupon the association of a specic type of mounting for atv taching the power unit to the frame, it should be understood that various types of mountings may be utilized for accomplishing this purpose without departing from lthe spirit and scope of the invention. For example,

the central plate 19 land elongated opening 20 may be eliminated and portions of the cross-brace substituted for the plate 19. I

prefer the mounting illustrated herein however for practical purposes sincev it forms a unit in itself and may be more readily and inexpensively installed. p i

What I claim as my invention is:

1. Means for mounting a power unit upon a vehicle chassis ;frame having laterally spaced sill members, comprising a crossbrace for the frame having the opposite ends rigidly secured to the sills and having an annular portion intermediate the ends for receiving a part of thepower unit, a pair ot laterally spaced plates rigidly secured to the power unit, a resilient materlal disposed between the said plates under tension and a member embedded within the resilient material free from metallic connection with the plates and power unit, and means for rigidly securing sald member to the. crossbrace.

2. Means for mounting a power unit upon a vehicle chassis frame having laterally7 spaced sill members, comprising a crossbrace. having the opposite ends rigidly secured to the sills and having an annular portion inter-, mediate the ends for receiving a part of the power unit, saidV annular portion of the crossbrace having a plurality of'concentrically arranged spaced openings therein, means located within each of said openingsestablishing a connection between the power unit and crossbrace including a pair of laterally spaced plates positioned free from metallic'U contact with the crossbrace and' rigidly se-y cured in spaced relation to each other to thcv power unit, a resilient material. arranged under tension between the plates, a member embedded within the resilient material free from contact with the plates and power unit, and means for rigidly securing said member to the annular portion aforesaid of the crossbrace. 3. Means for mounting a power unit upon a vehicle chassis frame having laterally v spaced sill members, comprising a crossbrace for the Aframe having the opposite ends rigidly secured to the sills'and having an annular portion intermediate the ends for receiving a part ofthe power unit, a pad of resilient material arranged between a portion of the power unit and the annular portion or' the crossbrace, a plate embracin the outer side of the resilient ad free rom metallic contact with the cross race, a clamping bolt extending through the plate and resilient pad and having a portion secured to the power unit, a spacer surrounding said clamping bolt between the plate and power unit permitting said plate to be rigidly clamped to the power unit without compressing said pad, a member embedded within the pad free from metallic Contact with the plate and power unit, andv means rigidly securing said member to the annular portion of said crossbracel 4. Means for mounting a power unit upon a chassis frame having laterally spaced sill members, comprising aycrossbrace for the frame having the opposite ends rigidly secured to the sills and having an annular por- -tion intermediate the ends, a plate disposed within an opening formed in the annular 35 portion free from metallic contact therewith and in lateral spaced relation with a portion of the power unit adjacent the o ening, a pad of resilient material interpose between the plate and power unit under tension, 40 means 'for rigidly clamping the plate to the power unit without compressing said resilient material, a member embedded within the resilient material free from metallic contact with. the plate and power unit, and means'for rigidly securing said member to the annular portion of the crossbrace.

'5. Means for mounting a power unit upon a chassis frame having laterally spaced sill members, comprising a crossbrace for' the frame having the opposite ends rigidly secured to the sills and having an annular poriton intermediate the ends for receiving a A part of the power unit, a pad of resilient material positioned Aopposite a portion of the power-unit and extending into an opening formed in the annular portion aforesaid of lthe crossbrac'e, a plate embracing the outer side of the pad, means for rigidly clamping the plate to the power unit without compressing said pad, and means integral with said crossbrace and embedded within the pad free from metallic contact with the power unit and plate.

In testimony whereof I affix my signature.

i EARLE MACPHERSON. 

